Wiring, computers. Something technological. Building schematics, information on whatever security system they have here. Behavior patterns for the Wardens, the Admiral, the general time frames for whenever this ship docks, the pull of new inmates and the current manifest, detailing how many from each dimension are here.

[He takes a breath, still thinking, fingers drumming on the side of his communicator]

Pretty much, I need to know this ship inside and out.